Finding the Fourth Proportional to 1,546.72, 2,319.52 and 450.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,546.72 : 2,319.52 = 450.72 : x
2. Step 2: Convert to fraction form
   1,546.72/2,319.52 = 450.72/x
3. Step 3: Cross multiply
   1,546.72x = 2,319.52 × 450.72
4. Step 4: Simplify right side
   1,546.72x = 1,045,454.05
5. Step 5: Solve for x
   x = 1,045,454.05/1,546.72
6. Step 6: Final answer
   x = 675.92